import java.util.Scanner;

public class test2 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        //获取数据
        int n = in.nextInt(),m=in.nextInt(),q=in.nextInt();
        int[][] arr = new int[n+1][m+1];
        for(int i=1;i<n+1;i++){
            for(int j=1;j<m+1;j++){
                arr[i][j] = in.nextInt();
            }
        }

        //设置动态矩阵
        long[][] dp = new long[n+1][m+1];
        for(int i=1;i<n+1;i++){
            for(int j=1;j<m+1;j++){
                dp[i][j] = dp[i-1][j]+dp[i][j-1]+arr[i][j]-dp[i-1][j-1];
            }
        }
        //得出答案
        while(q>0){
            int x1=in.nextInt(),y1=in.nextInt(),x2=in.nextInt(),y2=in.nextInt();
            System.out.println(dp[x2][y2]-dp[x1-1][y2]-dp[x2][y1-1]+dp[x1-1][y1-1]);
            q--;
        }
    }
}
